After raidina Russian port, Price launches a ballistic missile towards Washington, D.C. and detonas it in the upper atmosphere. Price takes command of Task Force 141 and insists on ending the United States' war with Russia despite Shepard’s orders to find Makarov. They assault the gulag and rescue the prisoner: Captain Price, Soap's previous commanding officer in the SAS. They succeed and learn that Makarov's nemesis is being held in a Russian gulag. With no vidence of Makarov's involvement in the airport massacre, Task Force 141 is sent to Rio de Janeiro to capture his arms dealer, Alejandro Rojas. Outraged by an apparent American-sponsored terrorist attack, Russia retaliates by launching a surprise insion on the East Coast of the United States. Makarov, aware of Allen’s true identity, kills him as they escape and leaves his body behind to spark a war between Russia and the United States. Len is soon sent on an undercover mission for the CIA, joining Vladimir Makarov in a mass shooting at an airport in Moscow, Russia.